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Old 10-17-2021, 02:41 PM   #1
2 Rivet Member
 
2018 22' Sport
Mt. Tremper , New York
Join Date: May 2013
Posts: 38
Twin Battery Installation in 2018 22í Sports

I finished my lift, installed an additional solar panel and a bumper kit and now that we are back from this yearís travels, Iím going to switch out the AGM battery to two 100 AH Battleborn lithium batteries. I believe I now have the correct charger and solar controller to make the switch. Iíd like to put both batteries under the bed. Has anyone figured out how to do this with two batteries and maintain enough room for the 4 full size storage boxes? Iíd rather not try to jamb one in the compartment on the driverís side where the buss bar is. Seems awfully tight. Or has anyone put one on the tongue an the other under the bed? Or perhaps there is a way to keep three full size storage containers and purchase a slightly smaller one. Iíd love to hear how others placed their dual lithiumís.
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Old 10-17-2021, 02:58 PM   #2
Half a Rivet Short
 
2017 30' Classic
2022 Interstate 24X
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 12,719
Hi

There's only just so much room ...

There are other threads from folks fabricating boxes to put batteries out on the A frame.

Bob
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Old 10-18-2021, 07:32 AM   #3
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2019 22' Sport
Carlsbad , California
Join Date: Nov 2018
Posts: 351
Yes, a slightly narrower box is the key. You can put both next to the front panel and have room for a 4th storage box. I only had 1 battery, so didnít need to orient that wayClick image for larger version

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Old 10-18-2021, 08:59 AM   #4
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2019 22' Sport
Join Date: Oct 2018
Posts: 285
Iím in the process of putting my twin lifepo4 setup on the tongue in a battery box. Not sure how youíd fit two under the bed without loosing at least one space for the bins. It could be done i bet.

https://www.airforums.com/forums/f37...ce-228151.html
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Old 10-19-2021, 10:49 AM   #5
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2017 22' Sport
NCR , Ontario
Join Date: Feb 2017
Posts: 2,566
we placed out BB lion under the bed after removing the old LA battery from the outside frame

i made a board and wired up all the connections for the monitoring devices and placed it under the bed in the front road side area. empty wasted space is now well utilized
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Old 10-19-2021, 05:19 PM   #6
Delaware ZMan

 
2016 22' Sport
Lewes , Delaware
Join Date: May 2021
Posts: 18
2016 22í Sport

I also put my 2 BB GC2s in the roadside niche in front of water heater. A little rewiring of bus bars to adjacent locations in same area. I also moved the solar controller (for roof) to the inside of front storage area (under bed) on left side , an additional charger for Zamp port (suitcase) and a DC-DC charger, too. Everything nicely in the roadside void area (bus bar area) and on left inside wall under bed. No problem at all fitting all bins still.
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Old 10-23-2021, 07:52 AM   #7
2 Rivet Member
 
2016 22' Sport
WALNUT CREEK , California
Join Date: Oct 2018
Posts: 53
Easy peasy....I also put both my Battleborn batteries in the area in front of the water heater, but stacked on their sides in a partial wooden frame. I checked out the approach with BB before proceeding. The 2000W inverter went on the bin side of the forward bulkhead where there was some additional width in the bin compartment, and the solar charge controller and bus bars in the forward corner compartment with the original wiring connections. Everything fits with the original bins, although I did end up adding a rail to the floor to keep the bin from bumping the inverter.

To complete the installation I also reinforced the flimsy bed support frame and added a lift supports for the bed platform, which my 2016 model did not have.
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Old 10-24-2021, 06:56 AM   #8
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2018 22' Sport
Mt. Tremper , New York
Join Date: May 2013
Posts: 38
Nice job. Shows me that I can fit a battery in front of the WH pretty easily. Iíll put one there and the other where you put your inverter as I have no need for that. I like your plywood battery boxes and the fact that you removed the top to do the work although I donít think Iíll need to do the rebuilding you did. And (small detail) I like the Reflectix that you put on the bed platform when you were done - it gets chilly under there in the Fall.
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